Attachment for plows



`VPatented Apr. 26, 1927.-

icE.

HEINRICH nrwnn AND FRITZ nwnn, on BLENIJER, GERMANY.

ATTACHMENT ron ILows.

Application led December 22, 1926, Serial No. 156,326, and in Germany December 21, 1925.

This invention relates to a coulter and supplementall Inoldboard attachment for plows. In plows ot this construction the coulter is either fixed on the plow-beam or directly on the plow-body, and in the latter case it generally has vthe shape of a plate or ot a knife forwardly projecting` and eX- tending from a horizontal arm. These plows ot known type present the inconveniences that they get easily clogged and that the earth mixed with manure containing long librous Vmaterial is not intercepted directly in front of `.the plow and guided as to be deposited at the side ot the furrow.

These inconveniences are avoided. according to the invention. by arranging on. the plow body, directly above the point of the plow share, a coulter and a supplemental moldboard constructed and operating as hereinafter described. l

An embodiment of the :invention is shown` by way of example, in the accompanying drawings, in which:

Fig. 1 shows a plow. the supplemental moldboard being removed.

Fig. 2 is a plan view of Fig. 1. l

Fig. 3 .shows a plow with the supplemental moldboard iXed on the Coulter.

Fig. 4 is a front elevation of the supplemental moldboard.

LFig. 5 is a section'on line 5&5 of Fig. at.

Above the point l of the plow-share a knife-like Coulter blade or plate 2 is ar-` ranged which ascends obliquely in rearward direction. This Vblade or plate 2 ser-ves as a support for a supplemental moldboard 8 spaced at a certain distance from in'ain moldboard 9.

The manure, containing1r long fibrous material, is intercepted by the Coulter blade 2 and guided thereby towards the front edge 4 of the supplemental moldboard f3, which guides it toward the t'ront edge 5 of the main mold board. .Thc'manure is guided by the main mold board together with the top layer ot' earth and deposited at the side into the furrow. The supplemental .moldboard 3 which. according to the kind ot soil in which the plow is used, is broader or narrower, has above its mold board por-y tion free from connection withrthe plow beam 6 and spaced therefrom so that a free passage between them for the deposit of earth and manure is created. n

As show n in 5, the supplemental moldboa'rd has a forward share portion and a main body or moldboard.portion. which latter of convex cross section and longii tudinally curved in an inward direction or toward the main moldboard and provided with a guide rib or ange Salso that lateral movement ot Vheavy constituents of the soil will he prevented'. of the soil V'slide iujwardly 'along the convex surface ot the moldboardportion of the supplemental moldboard. together with vthe light manure. and drop into the furrow, no

separating` of the heavy soil Jfrom the light manure taking place. Y

In order to prevent earth from sticking to the surface of the main moldboard nearl with Vthe plow-share 8, the mold board 9,

the runner 10, the frog 7 or with any other part of the plow, or ixedfon one of 4sai-d parts. v v

We claiIn:--V u l. An attachment for plows comprising, In combination, a coulter, and a supplemental moldboard mounted on said Coulter,

These heavy constituentsV r A j said supplemental moldboard having a'.

share portion and a convex moldboard portion.

2. In combination, a plow having a long share portion and a moldboard having a cutaway landside portion, a coulter mounted on said share portion and spaced from said cutaway portion of the moldboard,` and a supplemental moldboard Y mounted upon said Coulter, said supplement-almoldboard having a. share portion and'a convex moldboard portion.`

ln testimony .vhereoi' we a-'iiX our signatures. v

FRITZ nwnn.

f H'EINaIoI-I Rowan. i 

